New in PLAXIS LE 2D/3D CONNECT Edition V21 - Update 3
Release: October 2021
PLAXIS 2D/3D LE CONNECT Edition V21 Update 3 (21.03.01.02) contains the following improvements and updates compared to PLAXIS LE CONNECT Edition V21 Update 2:
Service Release Note: PLAXIS 2D/3D LE CONNECT Edition V21 Update 3 V21.03.01.02 (October 2021) is a service release update to V21.03.00.59 (September 2021) and corrects missing version update notifications from the CONNECTION Client.
New features
3D LEM Newmark Seismic Analysis
Extension of the 2D analysis implementation to 3D, for the critical accelerations and permanent displacement calculations, to assess the performance of slopes during earthquakes.
Slope Stability Python API [Technology Preview]
More features are exposed through the Python package, offering direct access to the LEM Slope Stability Solver to further automate modeling scenarios. API / Python scripting - PLAXIS LE Resources.
User requests
The following user requests have been incorporated in this release:
- [327939] LEM - Improved handling of water ponding when using the Barton-Bandis shear strength material type
- [327943] LEM - Improved Block Search to allow consideration of blocks that partially fall outside of the model geometry
- [328071] LEM - Added support of the Ru coefficient in a Probability or Sensitivity Analysis
- [328344] LEM - Added more advanced convergence options for 2D LEM analysis (minimum slice width, minimum slice weight, maximum base angle)
- [328463] LEM - Last executed date and runtime seemed inconsistently updated on the Slope Stability Batch Run dialog. The default was changed to be True for the Update the Solution Time During Batch Run setting.
- [614121] LEM - Added Child Materials defined as other shear strength types for each of Bedding and Rock Mass Shear Strength for ALM2 shear strength definitions in addition to the direct definition of shear strength data
- [628498] LEM - Added a JSON report for the Slope Stability Python API that is equivalent to the model information report in the LE Output interface
- [630170] LEM - Line style now customizable for the grid of columns display
- [635113] LEM - Added direct data input for the SHANSEP shear strength material type in addition to the parameter entry method.
- [637022] LEM - Improved the Slope Stability Python API default material color palette
- [651670] LEM - Improved layout of Unsaturated User-Defined shear strength dialog
- [665957] LEM - Added a Perpendicular to Pile force orientation option for Micro-Pile reinforcements
- [666675] LEM - MPA Solver dialog now shows the same name as what is shown on the MPA Input dialog instead of the run ID to make it easier to identify each run
- [670289] LEM - The FOS reported in the MPA solver dialog now updates as models are solving
- [688567] LEM - Added to pseudo-static seismic loads to Slope Stability Python API options
- [693583] Groundwater - Moved advanced time convergence controls for Stages input dialog to FEM Options dialog
- [673104] PLAXIS Designer - Added check for surface intersections present in LE Groundwater to the checks on the generation of a groundwater model from a PLAXIS Designer model volume
- [626508] Export of volume meshes in OBJ format added
- [636252] Added option to rename models directly without having to perform a Save As operation in the PLAXIS LE Manager
- [653274] Added Material Replacement tab on Stage Settings dialog with more replacement options
- [681837] Improved reporting of problems when attempting to import invalid Site Photo files
Fixed issues
A large number of issues have been addressed, including:
- [624881] LEM - Fixed case where an MPA 3D analysis using the relative file location option for a FEM pore-water pressure input file prevented the solution from executing
- [637079] LEM - Block Search polyline draw option was broken
- [647612] LEM - Custom slice view was not displaying slice line in 3D view when first drawn
- [651674] LEM - Improved reporting of solution failures using the Slope Stability Python API
- [682707] LEM - 3D distributed load now highlights when needed during editing
- [682709] LEM - Fixed object reference error encountered when converting a 2D model to a 3D model with distributed loads present
- [696491] LEM - Fixed some errors using 3D Geometry > Import > From Cross Section Data, when no other geometry had been created yet
- [696585] LEM - In a model using the Sarma Non-Vertical Slices search method, with the Cuckoo search, and Optimization enabled, the optimized FOS was displayed in the solver dialog, but not in the Output display
- [698733] LEM - All defined piezometric lines were being displayed when only some of them were currently applied to regions.
- [698949] LEM - Pore-water pressure input from a FEM analysis was being incorrectly referenced for a quad mesh
- [701963] LEM - Corrected the display of missing slip surface segments in Vertical Slice Views for some cases when the slip surface was coplanar to the column edges.
- [705179] LEM - Default contour settings were not appropriate for models calculating Ky Coefficients or Newmark Permanent Displacements
- [705732] LEM - Cleaned up some graph settings and display issues for the Unsaturated User-Defined material shear strength type
- [722519] LEM - When discrete points were set as the pore-water pressure input, the data was not being rotated in an Orientation Analysis
- [673958] LEM - CPTu and Piezometer objects included in a model were causing a very stretched axis display when viewing Multi-Plane Analysis (MPA) output
- [714423] LEM - Fixed a "failure mass results split down the middle" scenario by refining the consideration for a case where the columns are discontinuous in some areas of the critical sliding mass
- [589554] Groundwater - Improved 3D meshing for some cases by cleaning up any nodes that are close to a FULL DECIMAL apart after an intersection operation. Prevented adding boundary condition objects into surface meshes if they have not been assigned any BC
- [661843] Groundwater - Could not uncheck Staged option for Boundary Conditions on Boundary Conditions dialog
- [666801] Groundwater - Improved meshing to honor all boundary object segments when using skeleton lines
- [678386] Groundwater - Assign material to all empty regions and layers for a given Stage option now works
- [680201] Groundwater - Boundary Condition Manager was displaying removed region references and applied count after removal. These removed boundary conditions were not be applied to the model.
- [687800] Groundwater - Added warning for daily input values requirement when using the parabolic precipitation intensity option, to prevent negative volume reported on the Precipitation input dialog
- [698083] Groundwater - Improved 3D meshing algorithm to simplify the boundary created by using the Pond Elevation feature to remove points along regions, improving sidewall mesh building
- [700378] Groundwater - An error was encountered in 3D models after a well was added, preventing analysis.
- [703654] Groundwater - Fixed a case where the reported contribution of a flux boundary condition to the water balance report did not match the reported flux section report value.
- [704522] Groundwater - Fixed error on meshing 3D model with multiple flux section intersections
- [705258] Groundwater - Fixed some special cases in calculating 2D flux sections
- [692109] Fixed some cases with the Mass Import operations in the PLAXIS LE Manager
- [699746] Toggle for display of surface elevation contours was not working in Output, so required switching to Input to change the setting.
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